Fluorescence quenching based detection of nitroaromatics using luminescent triphenylamine carboxylic acids.

ABSTRACT: Detection of nitroaromatics employing greener techniques has been one of the most active research fields in chemistry. A series of triphenylamine (TPA) functionalized carboxylic acids were synthesized and characterized using various spectroscopic techniques including single-crystal X-ray diffraction analysis. The interaction of carboxylic acid-decorated TPAs with nitroaromatic compounds was photophysically explored using absorption and emission spectroscopy. Stern-Volmer plot accounts for the appreciable quenching constant of the TPA-acids. Density functional theory calculations were carried out to study the new compounds' frontier molecular orbital energy levels and the possible interactions with picrate anion and revealed an unusual charge transfer interaction between acids and picrate a

SUBMITTER: Mishra A 

PROVIDER: S-EPMC8481287 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature